Learn the Issues
-
Water Quality Monitoring Resources for the Merrimack River
View a collection of water quality monitoring resources for the Merrimack River.
-
Harmful Algal Bloom Video Challenge
This is the contest page for "See a Bloom, Give it Room - Harmful Algal Bloom Video Challenge," with guidelines and resources for entrants.
-
Marine Veteran and KC Recycling Trailblazer Honored During America Recycles Week 2019
Damon Wittenborn didn’t plan to start the first curbside glass recycling business in Kansas City, now hauling up to two tons each week.
-
Residential Yards Remediated in Region 7: An Overview of Lead Cleanup Activities in Southeast Missouri
EPA Region 7 has made significant strides in remediating contaminated areas in southeastern Missouri to help revitalize the environment and protect human health from the effects of lead-contaminated waste from historical mining.
-
Moss Landing Air: What particulate sizes did EPA monitor during the initial response in January?
Return to: Frequently Asked Questions EPA monitored for all of the particulate sizes listed below. If we say we are monitoring for PM2.5, this includes monitoring for particles 2.5 micrometers (μm) and smaller, down to the detection limit of the instrument (in this case 0.1 micrometers). The equipment EPA used…
-
Moss Landing Air: Is there a difference between air monitoring and air sampling?
Return to: Frequently Asked Questions Yes. Monitoring and sampling are used to accomplish different goals. Air monitoring is often used for emergencies because you get results immediately. Air sampling collects a sample over a longer period of time. The air sampling results show the average concentration over many hours, but…
-
Moss Landing Air: Are you requiring any air monitoring or sampling during Vistra’s battery removal work?
Return to: Frequently Asked Questions EPA is requiring air monitoring and air sampling to protect nearby residents and workers during the battery removal process. Vistra is required to implement air monitoring and air sampling during the demolition and battery handling activities. In the event of a fire, in addition to…
-
Moss Landing Air: What air monitoring technology did you use?
Return to: Frequently Asked Questions To monitor particulate matter, we used TSI DustTrak Monitors. We used the Honeywell SPM Flex (with the mineral acid chemistry cassette) to monitor for hydrogen fluoride.
-
Moss Landing Air: What did you test for during the fire?
Return to: Frequently Asked Questions We looked for contaminants likely found in a battery fire. The two main contaminants were: hydrogen fluoride and particulate matter.
-
Moss Landing Air: What were the results of EPA's air monitoring from January 17 to 20?
Return to: Frequently Asked Questions Particulate matter (PM2.5 and PM10) EPA’s monitoring showed concentrations of particulate matter to be consistent with the air quality index throughout the Monterey Bay and San Francisco Bay regions, with no measurements exceeding the moderate air quality level. Hydrogen fluoride gas Hydrogen fluoride gas was…
-
Moss Landing Air: What air monitoring activities did you do during the January fire response?
Return to: Frequently Asked Questions During the Fire At the request of local agencies, EPA conducted perimeter and community air monitoring beginning the morning January 17. We had nine air monitors set up at and around the property. The monitors looked for mineral acid gases like hydrogen fluoride and particulates…
-
Moss Landing Air: Can you detect nanoparticles in the air with the instrumentation you used during the initial response?
Return to: Frequently Asked Questions The term “nanoparticle” is often used to describe small particulate matter. The TSI DustTrak instruments used for air monitoring detect particles sized 0.1 microns (0.1 microns is the same as 100 nanometers) and larger. For reference, human hair is approximately 50-70 microns in thickness. (See…
-
Moss Landing Vistra Battery Fire Response: Frequently Asked Questions
Frequently asked questions about the Moss Landing Vistra Battery Fire Response.
-
Moss Landing Vistra Battery Fire Response: Response Timeline
Updates on EPA's response to the Moss Landing Vistra Battery fire.
-
Respuesta ante el incendio de baterías de Vistra, Moss Landing: Preguntas frecuentes
Preguntas frecuentes sobre la respuesta ante el incendio de baterías de Vistra, Moss Landing.
-
Moss Landing Air: What happened with the spike in particulate matter at air monitoring station 9 the morning of January 18, which resulted in a 1.275 mg/m3 reading for PM10?
Return to: Frequently Asked Questions EPA contractors were servicing the equipment at station 9, which resulted in a false reading of a temporary spike in PM10 at that location. Some temporary spikes or gaps in the data are expected, due to various factors such as lapses in telemetry (data transmission)…
-
La Deconstrucción de la Antigua Instalación de Reciclaje de Baterías de Exide, Vernon, California
Este sitio ya no se actualiza. Esta página detalla el trabajo hecho en la antigua instalación Excide. Para información sobre el trabajo hecho bajo el programa Superfund, por favor visite: https://epa.gov/superfund/exide.
-
Chemical Waste Management Inc. Kettleman Hills Facility, Kings County, CA
Information about Chemical Waste Management Inc. Kettleman Hills Facility (KHF), a commercial hazardous and chemical waste landfill located southwest of Kettleman City. EPA regulates the handling of PCB waste at this facility.
-
Sewersheds
Water Infrastructure and Capacity Assessment Tool
-
Regional Tribal Operations Committee (RTOC)
EPA's Pacific Southwest (Region 9) Regional Tribal Operations Committee (RTOC), co-chaired by EPA and tribal representatives, assists EPA in meeting its trust responsibility to Tribes. All Tribes in Region 9 are RTOC members.